#ifndef SRC_FILE_H_

#define SRC_FILE_H_
#include <wchar.h>
class File { // base class
public:
	File(){;}
	virtual bool is_open() = 0;
	virtual bool good() const = 0;
	virtual void open(const char* __s) = 0;
	virtual void open(const wchar_t* s ) = 0;
	virtual void open(const int s) = 0;
};
#endif /* SRC_FILE_H_ */
